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BOSTON MARATHON 2025

Wanting Chung

Bib: 23373•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:51/mi
27:30
↑ 97↓ 3451.5%
10K· 6.21 mi
8:50/mi
54:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:22:48
↑ 67↓ 78
20K· 12.43 mi
9:37/mi
1:52:42
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
1:59:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:04/mi
2:21:03
↑ 66↓ 880.2%
30K· 18.64 mi
9:47/mi
2:51:27
↑ 181↓ 1480.2%
20M
10:34/mi
3:05:49
↑ 64↓ 500.2%
21M
10:35/mi
3:16:24
↑ 106↓ 241.6%
35K· 21.75 mi
9:28/mi
3:23:29
↑ 17↓ 861.7%
23M
9:45/mi
3:35:42
↑ 23↓ 630.6%
24M
10:21/mi
3:46:03
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:54:20
↓ 200.3%
25.2M
11:16/mi
3:58:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:39/mi
4:08:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:04
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:08:59
Pace9:50 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2427:308:5127:30
8:51
-
10K
6.21 mi11:54:5154:578:5127:27
8:50
-0:01
15K
9.32 mi12:22:421:22:488:5327:51
8:58
+0:08
20K
12.43 mi12:52:361:52:429:0429:54
9:37
+0:39
Half
13.11 mi12:58:581:59:049:056:22
9:20
-0:17
25K
15.53 mi13:20:572:21:039:0521:59
9:04
-0:16
30K
18.64 mi13:51:212:51:279:1230:24
9:47
+0:43
20M
20.00 mi14:05:433:05:499:1714:22
10:34
+0:47
21M
21.00 mi14:16:183:16:249:2110:35
10:35
+0:01
35K
21.75 mi14:23:233:23:299:217:05
9:28
-1:07
23M
23.00 mi14:35:363:35:429:2312:13
9:45
+0:17
24M
24.00 mi14:45:573:46:039:2510:21
10:21
+0:36
40K
24.85 mi14:54:143:54:209:268:17
9:41
-0:40
25.2M
25.20 mi14:58:073:58:139:273:53
11:16
+1:35
Finish
26.22 mi15:07:574:08:039:289:50
9:39
-1:37

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:50 /mi

Average Pace

9:28 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:47

42% of race

Time at Steady Pace

1:44:05

42% of race

Time at Slower Pace

39:11

16% of race

Average Pace: 9:28 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:27:2427:308:5127:30
8:51
#21774
10K
6.21 mi11:54:5154:578:5127:27
8:50
#21684
15K
9.32 mi12:22:421:22:488:5327:51
8:58
#21743
20K
12.43 mi12:52:361:52:429:0429:54
9:37
#22236
Half
13.11 mi12:58:581:59:049:056:22
9:20
#22278
25K
15.53 mi13:20:572:21:039:0521:59
9:04
#21930
30K
18.64 mi13:51:212:51:279:1230:24
9:47
#21742
20M
20.00 mi14:05:433:05:499:1714:22
10:34
#21835
21M
21.00 mi14:16:183:16:249:2110:35
10:35
#21730
35K
21.75 mi14:23:233:23:299:217:05
9:28
#21670
23M
23.00 mi14:35:363:35:429:2312:13
9:45
#21544
24M
24.00 mi14:45:573:46:039:2510:21
10:21
#21580
40K
24.85 mi14:54:143:54:209:268:17
9:41
#21489
25.2M
25.20 mi14:58:073:58:139:273:53
11:16
#21475
Finish
26.22 mi15:07:574:08:039:289:50
9:39
#21478
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi217748502850221874(Top 77%)8474(Top 69%)8474(Top 650%)
10K6.21 mi3.10 mi21684+908434+688434+6821581(Top 76%)8360(Top 68%)8360(Top 642%)
15K9.32 mi3.11 mi21743-598461-278461-2721874(Top 77%)8474(Top 69%)8474(Top 650%)
20K12.43 mi3.11 mi22236-4938722-2618722-26123277(Top 82%)9287(Top 76%)9287(Top 713%)
Half13.11 mi0.68 mi22278-428754-328754-3223070(Top 81%)9183(Top 75%)9183(Top 705%)
25K15.53 mi2.42 mi21930+3488565+1898565+18920226(Top 71%)7665(Top 63%)7665(Top 588%)
30K18.64 mi3.11 mi21742+1888479+868479+8620955(Top 74%)8209(Top 67%)8209(Top 630%)
20M20.00 mi1.36 mi21835-938543-648543-6422624(Top 80%)9216(Top 75%)9216(Top 707%)
21M21.00 mi1.00 mi21730+1058513+308513+3020281(Top 71%)8064(Top 66%)8064(Top 619%)
35K21.75 mi0.75 mi21670+608493+208493+2020253(Top 71%)8111(Top 66%)8111(Top 622%)
23M23.00 mi1.25 mi21544+1268457+368457+3619663(Top 69%)7873(Top 64%)7873(Top 604%)
24M24.00 mi1.00 mi21580-368498-418498-4122405(Top 79%)9341(Top 76%)9341(Top 717%)
40K24.85 mi0.85 mi21489+918467+318467+3119459(Top 69%)7875(Top 64%)7875(Top 604%)
25.2M25.20 mi0.35 mi21475+148468-18468-121448(Top 76%)8881(Top 73%)8881(Top 682%)
Finish26.22 mi1.02 mi21478-38488-208488-2021739(Top 77%)9032(Top 74%)9032(Top 693%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21874

Females

8474

F50-54

8474

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21581

Females

8360

F50-54

8360

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21874

Females

8474

F50-54

8474

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23277

Females

9287

F50-54

9287

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

23070

Females

9183

F50-54

9183

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20226

Females

7665

F50-54

7665

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20955

Females

8209

F50-54

8209

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22624

Females

9216

F50-54

9216

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20281

Females

8064

F50-54

8064

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20253

Females

8111

F50-54

8111

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19663

Females

7873

F50-54

7873

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22405

Females

9341

F50-54

9341

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19459

Females

7875

F50-54

7875

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21448

Females

8881

F50-54

8881

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21739

Females

9032

F50-54

9032

Passing Analysis

Category:
Athletes Passed
1903
Passed By
1607
Net Change
+296
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21774
5K → 10K314224+90#21774#21684
10K → 15K186245-59#21684#21743
15K → 20K78571-493#21743#22236
20K → Half2163-42#22236#22278
Half → 25K36517+348#22278#21930
25K → 30K294106+188#21930#21742
30K → 20M61154-93#21742#21835
20M → 21M13530+105#21835#21730
21M → 35K7515+60#21730#21670
35K → 23M15226+126#21670#21544
23M → 24M3672-36#21544#21580
24M → 40K10413+91#21580#21489
40K → 25.2M3218+14#21489#21475
25.2M → Finish5053-3#21475#21478
TOTALS19031607+296
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing